Home / 5,391-8,086.26-2,104.70

Finding the Fourth Proportional to 5,391, 8,086.26 and 2,104.70

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Solution

The fourth proportional to 5,391, 8,086.26 and 2,104.70 is: 3,156.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391 : 8,086.26 = 2,104.70 : x
  2. Step 2: Convert to fraction form
    5,391/8,086.26 = 2,104.70/x
  3. Step 3: Cross multiply
    5,391x = 8,086.26 × 2,104.70
  4. Step 4: Simplify right side
    5,391x = 17,019,151.42
  5. Step 5: Solve for x
    x = 17,019,151.42/5,391
  6. Step 6: Final answer
    x = 3,156.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.